Identify the incorrect letter in the series: A, B, D, E, G, H, J

B. D

What letter should replace the question mark in the series: z, x, v, t, ?

A. R

Which letter should replace the question mark in the series: B, D, F, H, ?

D. I

What is the next letter in the series: A, C, E, G, ?

B. H

A, E, I, O, ?

A. U